MATERIAL SAFETY DATA SHEET (MSDS) ISOPENTANE

PRODUCT ▪D.O.T. SHIPPING NAME Isopentane IDENTIFICATION ▪SYNONYM (S) Isopentane, 2-Methylbutane, Ethyldimethyl ▪D.O.T. I.D. NUMBER UN-1265 ▪D.O.T. HAZZARD CLASS 3 Flammable Liquid ▪D.O.T. LABEL (S) Flammable Liquid ▪C.A.S. NUMBER 78-78-4

▪CHEMICAL FORMULA C5H12 or (CH3)2CHCH2CH3

PHYSICAL DATA ▪MOLECULAR WEIGHT 72.0 ▪FREEZING POINT -160°C, -256°F ▪BOILING POINT 30.6°C, 87°F ▪VAPOR PRESSURE 10 psia @ 1 atm, 60°F ▪SPECIFIC VOLUME 0.19 gal./lb. @ 1 atm, 68°F ▪RELATIVE DENSITY, (air=1) Heavier than air ▪SOLUBILITY IN WATER Negligible ▪DESCRIPTION At room temperature and atmospheric pressure isopentane is clear with little or no color, flammable, and has a characteristic odor.

FIRE AND ▪FLAMMABLE LIMITS IN AIR 1.4 – 8.3 % by volume EXPLOSION ▪AUTO-IGNITION 420°C, 788°F HAZARD DATA TEMPERATURE ▪ FLASH POINT Below 0° F ▪ FIRE FIGHTING The only safe way to extinguish an isopentane PROCEDURES fire is to stop the flow. Fires may be brought under control by using foam, carbon dioxide or a dry chemical fire extinguisher. Personnel may have to wear approach type protective suits and positive pressure self-contained breathing apparatus. Firefighters’ turnout gear may be inadequate. ▪ UNUSUAL HAZARDS 1. Cylinders exposed to fire may rupture with violent force. Keep cylinders cool by applying water from a maximum possible distance with a water spray. Avoid spreading burning liquid with water used for cooling. 2. Keep work areas free of hot metal surfaces and other sources of ignition.

Date prepared: September 7, 2007

18005 E. Hwy 225 La Porte, TX 77571 www.gasinnovations.com Ph: 281-471-2200 Fax: 281-471-2201

MSDS-ISOPENTANE PAGE 2 OF 3

HEALTH ▪ PERMISSIBLE EXPOSURE OSHA TWA None established. HAZARD DATA LIMITS ACGIH TWA None established. ▪ ACCUTE EFFECTS Isobutylene is a simple asphyxiant. OVEREXPOSURE Inhalation of high concentrations may cause rapid respiratory tract irritation, lightheadedness, central nervous system and depression it high concentrations. Can also sensitize the heart muscle. ▪ CHRONIC EFFECTS Chronic exposure may effect the liver. OF OVEREXPOSURE

FIRST AID ▪ INHALATION Move victim to fresh air. If not breathing, give artificial INFORMATION respiration, preferably mouth-to-mouth. If breathing is difficult, give oxygen. Do not administer Epineprime or other heart stimulants. Call a physician. ▪ SKIN Wash with soap and large quantities of water. ▪ EYE Flush with large quantities of water for at least 15 minutes and Seek immediate medical attention. ▪ INGESTION DO NOT INDUCE VOMITING. Seek immediate medical attention.

REACTIVITY ▪ STABILITY ( X ) Stable. ( ) Unstable. DATE ▪ INCOMPATIBILITY Oxidizing agents, acids, bases, and selected amines. ▪ HAZARDOUS Carbon monoxide, carbon dioxide. DECOMPOSITION/ OXIDATION PRODUCTS ▪ POLYMERIZATION ( X ) Will not occur ( ) May occur

SPILL OR Shut off all ignition sources, remove hot metal surfaces, and ventilate the area. For LEAKAGE controlling large flow, personnel may have to wear approach-type protective suits PROCEDURE and self-contained breathing apparatus. Flush spilled material into suitable retaining areas or containers with large quantities of water. Small amounts of spilled material may be absorbed into an appropriate absorbent.

Date prepared: September 7, 2007

18005 E. Hwy 225 La Porte, TX 77571 www.gasinnovations.com Ph: 281-471-2200 Fax: 281-471-2201

MSDS – ISOPENTANE PAGE 3 OF 3

PRECAUTIONS ▪ STORAGE Cylinders should be stored and used in dry, cool, well- RECOMMENDATIONS ventilated areas away from sources of heat or ignition. Do not store with oxidizers. Avoid direct sun light.

▪ PERSONAL PROTECTIVE 1. Eye protection – Safety glasses, chemical goggles, and/or EQUIPMENT face shields should be worn. 2. Respiratory protection – Approved respiratory equipment must be worn when airborne concentrations exceed safe levels. 3. Skin protection – Use impermeable gloves and impermeable aprons. The availability of eye washes and safety showers in work areas is recommended. ▪ BEFORE USING THE GAS 1. Secure the cylinder to prevent it from falling or being knocked over. 2. Install check valves or traps to prevent sucback to the cylinder. 3. Ground all lines and equipment. 4. Leak check the lines and equipment. 5. Have an emergency plan covering steps to be taken in the event of an accidental release.

DISCLAIMER

The information, recommendations, and suggestions herein were compiled form reference material and other sources believed to be reliable. However, the MSDS’s accuracy or completeness is not guaranteed by Gas Innovations or its affiliates, nor is any responsibility assumed or implied for any loss or damage resulting from inaccuracies or omissions. Since conditions of use are beyond our control, no warranties of merchantability or fitness for a particular purpose are expressed or implied. This MSDS is not intended as a license to operate under, or recommendation to infringe on, any patents. Appropriate warnings and safe handling procedures should be provided to handlers and users.

Date prepared: September 7, 2007

18005 E. Hwy 225 La Porte, TX 77571 www.gasinnovations.com Ph: 281-471-2200 Fax: 281-471-2201